CVE-2024-50382

Botan before 3.6.0, when certain LLVM versions are used, has compiler-induced secret-dependent control flow in lib/utils/ghash/ghash.cpp in GHASH in AES-GCM. There is a branch instead of an XOR with carry. This was observed for Clang in LLVM 15 on RISC-V.

CVSS v3.1

5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.55% chance of exploitation in the next 30 days, 44th percentile

Published

2024-10-23

Updated

2024-10-24

Proof-of-concept exploits (1)

• https://arxiv.org/pdf/2410.13489

References

• CVE Record
• NVD entry

Related

• CVE-2024-50379
• CVE-2024-50383
• CVE-2024-50355
• CVE-2024-50395
• CVE-2024-50354
• CVE-2024-50404